Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFB21C636D3 for ; Tue, 31 Jan 2023 09:00:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232261AbjAaI7o (ORCPT ); Tue, 31 Jan 2023 03:59:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232100AbjAaI7J (ORCPT ); Tue, 31 Jan 2023 03:59:09 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04D334A200; Tue, 31 Jan 2023 00:55:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=rhCsY2V0K1JQeXvbPkK1YWpb3KV/lJbLEv47FklFMsc=; b=AJpWk7PFgIkQ65NH1xZDrHA8dA zcE+UrpQk44ftE4ODzzdPDWZxqHIyCV7gDGmfU8DcKgLw2CxLDXHS/fDEfGMSj0djjqGex7ft++Ni mGFuW7NUcKBAybLe47VGeHeaZh4Hl4WQnQJfOUr0desMJXgFKyfDK9nfaC3OUwO8wFsryQr8saSJ9 SPEFU+T9MiWlcbBo2AXaxRCgIqMZDV07wBZFUZ8iQIlpv2Uu61T2Bj9wOK2mcyHxBUEBdVHYBYOzg P00CdzXkXg9uuQgP7Kh1hdvDUfU2hNJGapy2l3PaxhHAVNBcRx6GpW/bfQ+VD9WDZYcDhn+v5dtmv hP7a/mbw==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pMmOt-006rfW-RR; Tue, 31 Jan 2023 08:53:59 +0000 Date: Tue, 31 Jan 2023 00:53:59 -0800 From: Christoph Hellwig To: Fan Wu Cc: corbet@lwn.net, zohar@linux.ibm.com, jmorris@namei.org, serge@hallyn.com, tytso@mit.edu, ebiggers@kernel.org, axboe@kernel.dk, agk@redhat.com, snitzer@kernel.org, eparis@redhat.com, paul@paul-moore.com, linux-doc@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-block@vger.kernel.org, dm-devel@redhat.com, linux-audit@redhat.com, roberto.sassu@huawei.com, linux-kernel@vger.kernel.org, Deven Bowers Subject: Re: [RFC PATCH v9 09/16] block|security: add LSM blob to block_device Message-ID: References: <1675119451-23180-1-git-send-email-wufan@linux.microsoft.com> <1675119451-23180-10-git-send-email-wufan@linux.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1675119451-23180-10-git-send-email-wufan@linux.microsoft.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 30, 2023 at 02:57:24PM -0800, Fan Wu wrote: > From: Deven Bowers > > block_device structures can have valuable security properties, > based on how they are created, and what subsystem manages them. That's a lot of cloudy talk but no real explanation.